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• Is it possible to exclude some files from checkin (TFS) ?

  - by Thomas Wanner

  We use configuration files within various projects under source control (TFS), where each developer has to make some adjustments in his local copy to configure his environment. The build process takes care about replacing the config files with the server configuration as a part of the deployment, so it doesn't actually matter what is in the repository. However, we would anyway like to keep some kind of a default non-breaking version of config files in the repository, so that e.g. people not involved in the particular project won't run into troubles because of local misconfiguration. We tried to resolve this by introducing the check-in policy that simply forbids to check-in the config files. This works fine, but just because we're lazy to always uncheck those checkboxes in the pending changes window, the question comes : is it possible to transparently disable the check-in of particular files without keeping them out of source control (e.g. locking their current version) ?

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• Is there any kind of standard for 8086 multiprocessing?

  - by Earlz

  Back when I made an 8086 emulator I noticed that there was the LOCK prefix intended for synchonization in a multiprocessor environment. Yet the only multitasking I know of for the x86 arch. involves use of the APIC which didn't come around until either the Pentiums or 486s. Was there any kind of standard for 8086 multitasking or was it done by some manufacturer specific extensions to the instruction set and/or special ports? By standard, I mean things like: How do you separate the 2 processors if they both use the same memory? This is impossible without some kind of way to make each processor execute a different piece of code. (or cause an interrupt on only one processor)

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• Best Asp.net Hosting

  - by dotnetguts

  There are many asp.net web hosting companies which spends lot on advertisement and also gives you very cheaper rate, as low as $5, but when it comes to support they are simply hopeless. Everyone can you please pass your experience with your past hosting companies and suggest any good asp.net hosting company? Please consider following requirement factors Asp.net 3.5 or 4.0 supported. Url Rewriter support GZip support (Dynamic through code) Initial Setup support (If required) SQL Server 2005 or 2008 Allow to access SQL Server DB using SQL Mgmt Studio Environment supporting Backup and Restore of DB on my own, without involving tech support team Full Text Search support FTP support I can able to send atleast 500 Emails daily. 99.9% Up Time (No matter all web hosting say they have 99.9% Up Time, but its not true). Alert Email to be sent when they do any maintenance or during downtime. Hosting Price should be reasonable. Incase you feel i am missing something please add to the list. Can anyone suggest good webhosting company based on above factors?

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• How to support both DataContractSerializer and XMLSerializer for the same contract on the same host?

  - by Sly

  In our production environment, our WCF services are serialized with the XMLSerializer. To do so our service interfaces have the [XMLSerializerFormat] attribute. Now, we need to change to DataContractSerializer but we must stay compatible with our existing clients. Therefore, we have to expose each service with both serializers. We have one constraint: we don't want to redefine each contract interface twice, we have 50 services contract interfaces and we don't want to have IIncidentServiceXml IIncidentServiceDCS IEmployeeServiceXml IEmployeeServiceDCS IContractServiceXml IContractServiceDCS How can we do that? This is a description of what we have tried so far but I'm willing to try completely different approaches: We tried to create all the endpoints by code in our own ServiceHostFactory class. Basically we create each endpoint twice. The problem is that at runtime, WCF complains that the service has two endpoints with the same contact name but with different ContractDescription instances. The message says we should use different contract names or reuse the same ContractDescription instance.

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• Multi-process builds in Visual Studio 2010: Worth it?

  - by coryr

  I've started testing our C++ software with VS2010 and the build times are really bad (30-45 minutes, about double the VS2005 times). I've been reading about the /MP switch for multi-process compilation. Unfortunately, it is incompatible with some features that we use quite a bit like #import, incremental compilation, and precompiled headers. Have you had a similar project where you tried the /MP switch after turning off things like precompiled headers? Did you get faster builds? My machine is running 64-bit Windows 7 on a 4 core machine with 4 GB of RAM and a fast SSD storage. Virus scanner disabled and a pretty minimal software environment.

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• How to show and hide preferences on Android dynamically?

  - by Japtar

  Is there a way to dynamically show and hide preferences? In my case, I have a checkbox preference that would disable or enable one of 2 preference groups ("with-" and "without-handicap" groups). While this would be the ideal GUI in a desktop environment, the "with-handicap" takes up nearly the whole screen, while the other, "without-handicap" takes up only a small portion of the screen. Rather than showing both groups at the same time, I'd like to show only one of them at a time, and dynamically show or hide the 2 groups when the checkbox changes. Is there a way to do this?

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• Debugging stack data not assigned to a named variable

  - by gibbss

  Is there a way to view stack elements like un-assigned return values or exceptions that not assigned to a local variable? (e.g. throw new ...) For example, suppose I have code along the lines of: public String foo(InputStream in) throws IOException { NastyObj obj = null; try { obj = new NastyObj(in); return (obj.read()); } finally { if (obj != null) obj.close(); } } Is there any way to view the return or exception value without stepping to a higher level frame where it is assigned? This is particularly relevant with exceptions because you often have to step back up through a number of frames to find an actual handler. I usually use the Eclipse debugging environment, but any answer is appreciated. Also, if this cannot be done, can you explain why? (JVM, JPDA limitation?)

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• Perform manual test, automate after - or never?

  - by dotnetdev

  In my current company, we have one tester. Having spoken to this tester, she says that in testing, before implementing any automation systems, the scripts (steps to take) are manually written and performed (performed at least once). Is this the way things work in testing? To make me laugh, this has been done in this case, yet no automation. It makes me laugh to see the lead tester perform loads of different combinations of usernames and passwords for a login form (which she is not overly keen on having automated) when I could easily automate that (but politics in the company won't allow that). This doesn't seem like the environment where a junior tester (not me, I'm a SDET) cannot learn anything. Thanks

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• WCF service hosted in IIS 5.0 - http get methods not invoked through the browser

  - by Dmitry

  I have service hosted in IIS5.0 and configured such way : ** <behaviors> <endpointBehaviors> <behavior name="GalleriesBehavior"> <webHttp/> </behavior> ** When I make request to http://localhost/sandboxWidget/Galleries.svc?Test ,the message I get is : "Metadata publishing for this service is currently disabled." and instructions how to expose meta data exchange...Tried this but doesn't help.. I can write any function name ,even not existing (http://localhost/sandboxWidget/Galleries.svc?blabla) ,but the message is same .... I'm new to Wcf ,but what looks me strange is that ,the same application was working in my job environment ,but not on my home PC .... I have same VS2008,NET3.5 with service pack 1

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• c# ref keyword... Am i passing my value correctly?

  - by Pandiya Chendur

  Is this a valid value for this c# class default constructor, public class SMSCOMMS { public SMSCOMMS(ref string COMMPORT) { SMSPort = new SerialPort(); SMSPort.PortName = COMMPORT; SMSPort.BaudRate = 9600; SMSPort.Parity = Parity.None; SMSPort.DataBits = 8; SMSPort.StopBits = StopBits.One; SMSPort.Handshake = Handshake.RequestToSend; SMSPort.DtrEnable = true; SMSPort.RtsEnable = true; SMSPort.NewLine = System.Environment.NewLine; ReadThread = new Thread( new System.Threading.ThreadStart(ReadPort)); } and i am passing this value, SMSCOMMS SMSEngine = new SMSCOMMS("COM6"); but it doesn't seem to take "COM6" as a valid ref string... Any suggestion..

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• How do I safely Debug.Assert in ASP.NET?

  - by MatthewMartin

  Asserts can't be caught. This is good because some errors I don't want to be wrapped in try/catch, at least not on the development server. But Asserts seem awefully dangerous. If they get onto production, it can hang the ASP.NET server with a msgbox. //Don't want this on prod even if debug=true is in the web.config #if DEBUG //A future client programmer can wrap this in a try{}catch{} if (!EverythingIsOkay) throw new InvalidOperationException("Dagnabbit, programming error"); //This stops the but has less information that an // Exception and hangs the server if this accidentally // runs on production System.Diagnostics.Debug.Assert(!EverythingIsOkay); #endif Is there better way to communicate an violation of a inviolable condition to a developer without risking hanging IIS? UPDATE: After reading the first replies, I guess the answer hinges on a foolproof way to detect when code is running in a development environment and when it is on a production server, or figuring out how to throw an exception that can't be caught and ignored.

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• C#: how to update winform from thread?

  - by JackN

  A C# thread (Read()) causes System.NotSupportedException when it tries to update a winform based on received content. The full error message is Read() System.NotSupportedException: An error message cannot be displayed because an optional resource assembly containing it cannot be found at Microsoft.AGL.Common.MISC.HandelAr() at System.Windows.Forms.ProgressBar._SetInfo() at System.Windows.Forms.ProgressBar.set_Value() at ...ProcessStatus() at ...Read() The Build/Target Environment is: Microsoft.NET\SDK\CompactFramework\v2.0\WindowsCE. Is the problem writing to the ProgressBar from a Thread? If so, what is the correct C#/winforms method to update a ProgressBar from a Thread? In this application the Read() Thread is continuous: it is started when the application starts and runs forever. void ProcessStatus(byte[] status) { Status.Speed = status[5]; var Speed = Status.Speed/GEAR_RATIO; Status.Speed = (int) Speed; progressBarSpeed.Value = Status.Speed; ...

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• In Jenkins, how to checkout a project into a specific directory (using GIT)

  - by viebel

  Sorry for the 'svn' style - we are in a process of migration from SVN to GIT (including our CI Jenkins environment). What do we need is to be able to make Jenkins to checkout (or should I say clone?) the GIT project (repository?) into a specific directory. We've tried some refspecs magic but it wasn't to obvious to understand and to use successfully. Furthermore, if in the same Jenkins project we need to checkout several private GitHub repositories into several separate dirs under a project root. How can we do it please? We have GitHub plugin installed. Hope we've phrased the things right.

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• Event trigger print using VC++

  - by santhosh kumar

  I have requirement to print log data continuously whenever an event trigger (Without showing print dialog, using default printer). Event may occur twice a second or minit or hour. Also i don`t bother about printer status. example out of paper, communication problem. Printer should not leave empty page. Example event 1 have 4 lines of data to print. While printing event 2, printer should print continuously instead of fetching next paper. My development environment VC++ and MFC.

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• intelligent thin start with port alias for bash

  - by seaofclouds

  i would like a single alias (ts) which starts my local development server. the script should test for an open port starting at 3000 and use the first available port. additionally, some sites require a rackup file, making -R config.ru necessary. this script should check the current directory for the config.ru file and add that to the alias if present. currently, to start my local development environment, i run: alias ts="thin -R config.ru -p 3000 start" often, i need to run several servers to test different sites, so i've created additional aliases: alias ts1="thin -R config.ru -p 3001 start"

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• PHP: System Timezone Setting error

  - by marknt15

  Hi, I'm trying to use PHP in the terminal under MAMP but I got an error related to the system's timezone settings. How can I fix this error? $/Applications/MAMP/bin/php5/bin/php echo.php PHP Strict Standards: PHP Startup: It is not safe to rely on the system's timezone settings. Please use the date.timezone setting, the TZ environment variable or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Manila' for 'PHT/8.0/no DST' instead in Unknown on line 0 Thanks

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• About enumerations in Delphi and c++ in 64-bit environments

  - by sum1stolemyname

  I recently had to work around the different default sizes used for enumerations in Delphi and c++ since i have to use a c++ dll from a delphi application. On function call returns an array of structs (or records in delphi), the first element of which is an enum. To make this work, I use packed records (or aligned(1)-structs). However, since delphi selects the size of an enum-variable dynamically by default and uses the smallest datatype possible (it was a byte in my case), but C++ uses an int for enums, my data was not interpreted correctly. Delphi offers a compiler switch to work around this, so the declaration of the enum becomes {$Z4} TTypeofLight = ( V3d_AMBIENT, V3d_DIRECTIONAL, V3d_POSITIONAL, V3d_SPOT ); {$Z1} My Questions are: What will become of my structs when they are compiled on/for a 64-bit environment? Does the default c++ integer grow to 8 Bytes? Are there other memory alignment / data type size modifications (other than pointers)?

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• In a web app, is it wise to give log files ".txt" suffix?

  - by Pekka

  I am building a logging mechanism in a web application. Being a Windows man, I tend to give files with textual content the .txt ending. The suffix is automatically registered to be opened in a text editor in any Windows environment, and is just a nice convention. The app is going to be redistributed, and running mostly on Linux, though. The Linux convention for log files is .log. Is there any good reason on the Linux end, besides convention, why I should use .log? Any filters, real-life applications that could become relevant and that will work only with a .log suffix? Or can I merrily call it error_log.txt?

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• Using WCF HttpBindings on a LAN

  - by dcw

  We have a WCF-based client server that operates over a LAN. We've been getting along ok by using the NetTcpBinding, chosen because we couldn't get either HttpBinding to work between hosts. (Within a single host works fine, but is not useful for the production environment.) We're now back at the point where we want to explore using either BasicHttpBinding or WsHttpBinding, but we simply can't see the server from the client: even putting in the path to the endpoint into IE fails to see the server. Is there something simple we've overlooked? We're not specifying any security settings (or anything else, for that matter). Should we be doing so (e.g. explicitly setting security settings to None)?

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• xajax and codeigniter - blank page and xajax request URI error.

  - by Adam Leonard

  I am unfortunately getting a blank page when trying to run a site locally. There are other people running it locally just fine, so I am wondering if it could be something to do with my LAMP environment. When I attempt to load the site, it's nothing but a blank page. I've ran php index.php in console and the error I get is the following "xajax Error: xajax failed to automatically identify your Request URI.Please set the Request URI explicitly when you instantiate the xajax object.". I'm not quite sure how to handle this in CodeIgniter and or at all to be honest.

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• Emacs on Windows for C++ development configuration?

  - by rbnn

  Has anyone set up cygwin and some emacs to work well under a 64-bit Windows 7? I tried downloading cygwin recently, and by default not even dired works reliably, there are odd shell prompt characters, I get a lot of warnings, in one case C-c was read as C-g and caused various errors. (Neither xemacs nor emacs worked for me, where by "work" I mean that dired and shell work, and without warnings). I just want the usual emacs development tools: gdb-mode, shell-mode, compiling, tag-search to work as normal. I was hoping someone who has done this recently with cygwin could share whatever relevant shell files, emacs files, environment variables, and so on to make this all work. Should all these things just work out of the box?

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• How to get current directory in C# for any Windows version?

  - by DarthRoman

  I am creating an application that can be executed in any windows version, even in mobile's, and I am trying to get the current directory of the executable. The problem is that if I use the following code, it doesn't compile in Windows Mobile: string currentDirectory = System.IO.Path.GetDirectoryName(System.Windows.Forms.Application.ExecutablePath); And if I use this code, I receive something like: file:\C:\xxx string currentDirectory = System.IO.Path.GetDirectoryName(System.Windows.Forms.Application.ExecutablePath); Although, I need to get the root drive, and this code doesn't compile in Windows Mobile: String rootPath = Path.GetPathRoot(Environment.SystemDirectory); Does anyone know how to get the current directory of the application and the root path for any windows version, even mobile's?

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• I've created a database table using Visual Studio for my C# program. Now what?

  - by Kevin

  Hi! I'm very new to C#, so please forgive me if I've overlooked something here. I've created a database using Visual Studio (add new item service-based database) called LoadForecast.mdf. I then created a table called ForecastsDB and added some fields. My main question is this: I've created a console application with the intention of writing some data to the newly created database. I've added LoadForecast.mdf as a data source for my program, but is there anything else I should do? I saw an example where the next step was adding a "data diagram", but this was for a visual application, not a console application. Do I still need to diagram the database for my console app? I just want to be able to write new records out to my database table and wasn't sure if there were any other things I needed to do for the VS environment to be "aware" of my database. Thanks for any advise!

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• .net - how to connect windows service with systray application

  - by razor

  I have a windows service that do something periodically. on user account runs systray application (written in C#) that communicate with windows service (thru .net remoting) and shows a status and some option to users. Everything works well beside that systray app uses 20-30MB of RAM ! it have to work in terminal environment, when 50 users login, only systray apps take 1GB of RAM ! and i don't have to add, that's wrong :) Is it possible to write .net systray application that will be small ? (1-2MB max?) or should I write it in c/c++? then, what kind of communication should I use between windows service (written in C#) and systray app ?

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• How do you refresh the contents of an R gWidget?

  - by Richie Cotton

  I'm creating a GUI in R using gWidgets (more specifically gWidgetstcltk). I'd like to know how to update the contents of selection-type widgets, such as gdroplist and gtable. I currently have a rather hackish method of deleting the widget and re-creating it. I'm sure there's a better way. This simple example displays all the variables in the global environment. library(gWidgets) library(gWidgetstcltk) create.widgets <- function() { grp <- ggroup(container = win) ddl <- gdroplist(ls(envir = globalenv()), container = grp) refresh <- gimage("refresh", dirname = "stock", container = grp, handler = function(h, ...) { if(exists("grp") && !is.null(grp)) { delete(win, grp) rm(grp) } grp <- create.widgets() } ) } win <- gwindow() grp <- create.widgets()

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